|
BIGSIM
BIGSIM is a computer simulation and performance modeling system for parallel computing, typically used for very large computer clusters.''Petascale Computing: Algorithms and Applications'' by David A. Bader 2007 pages 435-435''Languages and Compilers for Parallel Computing'' edited by Keith Cooper, John Mellor-Crummey and Vivek Sarkar 2011 pages 202-203 BIGSIM was developed at the University of Illinois.''Advances in Computer Science, Environment, Ecoinformatics, and Education'' edited by Song Lin and Xiong Huang 2011 page 16 When a large scale, often supercomputer level, parallel system is being developed, it is essential to be able to experiment with multiple configurations and simulate performance. BIGSIM provides these facilities by allowing the simulation of performance on various node topologies, message passing and scheduling strategies. BIGSIM includes an emulator and a trace-based simulator. The emulator executes applications on a small number of nodes and stores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trace-based Simulator
In computer science, trace-based simulation refers to system simulation performed by looking at traces of program execution or system component access with the purpose of performance prediction.''Software Technologies for Embedded and Ubiquitous Systems'' edited by Sunggu Lee and Priya Narasimhan 2009 page 28 Trace-based simulation may be used in a variety of applications, from the analysis of solid state disks to the message passing performance on very large computer clusters.''Languages and Compilers for Parallel Computing'' edited by Keith Cooper, John Mellor-Crummey and Vivek Sarkar 2011 pages 202-203 Traced-based simulators usually have two components: one that executes actions and stores the results (i.e. traces) and another which reads the log files of traces and interpolates them to new (and often more complex) scenarios. For instance, in the case of large computer cluster design, the execution takes place on a small number of nodes, and traces are left in log files. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SimGrid
{{Infobox software , name = SimGrid , title = SimGrid , logo = , author = , developer = , released = {{start date, 1998{{cite conference , first = Henri , last = Casanova , title = A Toolkit for the Simulation of Application Scheduling , book-title = First IEEE International Symposium on Cluster Computing and the Grid (CCGrid'01) , pages = 430–441 , date = May 2001 , location = Brisbane, Australia , doi = 10.1109/CCGRID.2001.923223 , latest release version = 3.32 , latest release date = {{start date and age, 2022, 10, 04{{cite web, title=SimGrid download page, url=https://framagit.org/simgrid/simgrid/-/releases/v3.32, accessdate=2022-10-13 , programming language = Core: C++; Bindings: Java, Python, lua.{{cite web, title=Official SimGrid Page, url=http://simgrid.gforge.inria.fr/, accessdate=November 27, 2012 , platform = Unix, Mac OS X, Microsoft Windows , genre = Distributed system simulator, Network simulator , license = GNU Lesser General Public L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallel Computing
Parallel computing is a type of computation in which many calculations or processes are carried out simultaneously. Large problems can often be divided into smaller ones, which can then be solved at the same time. There are several different forms of parallel computing: bit-level, instruction-level, data, and task parallelism. Parallelism has long been employed in high-performance computing, but has gained broader interest due to the physical constraints preventing frequency scaling.S.V. Adve ''et al.'' (November 2008)"Parallel Computing Research at Illinois: The UPCRC Agenda" (PDF). Parallel@Illinois, University of Illinois at Urbana-Champaign. "The main techniques for these performance benefits—increased clock frequency and smarter but increasingly complex architectures—are now hitting the so-called power wall. The computer industry has accepted that future performance increases must largely come from increasing the number of processors (or cores) on a die, rather than m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Cluster
A computer cluster is a set of computers that work together so that they can be viewed as a single system. Unlike grid computers, computer clusters have each node set to perform the same task, controlled and scheduled by software. The components of a cluster are usually connected to each other through fast local area networks, with each node (computer used as a server) running its own instance of an operating system. In most circumstances, all of the nodes use the same hardware and the same operating system, although in some setups (e.g. using Open Source Cluster Application Resources (OSCAR)), different operating systems can be used on each computer, or different hardware. Clusters are usually deployed to improve performance and availability over that of a single computer, while typically being much more cost-effective than single computers of comparable speed or availability. Computer clusters emerged as a result of convergence of a number of computing trends including t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Illinois
The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University of Illinois system and was founded in 1867. Enrolling over 56,000 undergraduate and graduate students, the University of Illinois is one of the largest public universities by enrollment in the country. The University of Illinois Urbana-Champaign is a member of the Association of American Universities and is classified among "R1: Doctoral Universities – Very high research activity". In fiscal year 2019, research expenditures at Illinois totaled $652 million. The campus library system possesses the second-largest university library in the United States by holdings after Harvard University. The university also hosts the National Center for Supercomputing Applications and is home to the fastest supercomputer on a university campus. The u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercomputer
A supercomputer is a computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second ( FLOPS) instead of million instructions per second (MIPS). Since 2017, there have existed supercomputers which can perform over 1017 FLOPS (a hundred quadrillion FLOPS, 100 petaFLOPS or 100 PFLOPS). For comparison, a desktop computer has performance in the range of hundreds of gigaFLOPS (1011) to tens of teraFLOPS (1013). Since November 2017, all of the world's fastest 500 supercomputers run on Linux-based operating systems. Additional research is being conducted in the United States, the European Union, Taiwan, Japan, and China to build faster, more powerful and technologically superior exascale supercomputers. Supercomputers play an important role in the field of computational science, and are used for a wide range of computationally intensive tasks in var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Topology
Network topology is the arrangement of the elements ( links, nodes, etc.) of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, industrial fieldbusses and computer networks. Network topology is the topological structure of a network and may be depicted physically or logically. It is an application of graph theory wherein communicating devices are modeled as nodes and the connections between the devices are modeled as links or lines between the nodes. Physical topology is the placement of the various components of a network (e.g., device location and cable installation), while logical topology illustrates how data flows within a network. Distances between nodes, physical interconnections, transmission rates, or signal types may differ between two different networks, yet their logical topologies may be identical. A network’s physical topology is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charm++
Charm++ is a parallel object-oriented programming paradigm based on C++ and developed in the Parallel Programming Laboratory at the University of Illinois at Urbana–Champaign. Charm++ is designed with the goal of enhancing programmer productivity by providing a high-level abstraction of a parallel program while at the same time delivering good performance on a wide variety of underlying hardware platforms. Programs written in Charm++ are decomposed into a number of cooperating message-driven objects called ''chares''. When a programmer invokes a method on an object, the Charm++ runtime system sends a message to the invoked object, which may reside on the local processor or on a remote processor in a parallel computation. This message triggers the execution of code within the chare to handle the message asynchronously. Chares may be organized into indexed collections called ''chare arrays'' and messages may be sent to individual chares within a chare array or to the entire chare a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
